Title:
【発明の名称】担持されたメタロセン触媒を用いたオレフィン系高分子の製造方法
Document Type and Number:
Japanese Patent JP2002503262
Kind Code:
A
Abstract:
An olefinic polymer having improved molecular weight distribution and bulk density is prepared by polymerizing an olefinic monomer and, optionally, a comonomer in the presence of a supported catalyst comprising a modified metallocene and an alkylaluminoxane supported on a carrier in an aliphatic hydrocarbon solvent, the modified metallocene being derived from a metallocene of formula(I) by introducing at least one C5-20 alkyl substituent into a pi-ligand, C1-4 alkylene bridge or silicon bridge thereof and the alkylaluminoxane having a repeating unit of formula(II):wherein:M is Ti, Zr or Hf;X is a halogen, or a C1-3 alkyl group;L1 and L2 are each a pi-ligand selected from the group consisting of cyclopentadienyl, indenyl, fluorenyl and derivatives thereof, and are optionally linked together by a C1-4 alkylene bridge or by a silicon bridge;m is an integer of 2 or more; andR1 is a C1-20 alkyl group.
Inventors:
Oh, Je Seung
Park, Tai Ho
Lee, Bun Yor
Park, Tai Ho
Lee, Bun Yor
Application Number:
JP51700298A
Publication Date:
January 29, 2002
Filing Date:
August 04, 1997
Export Citation:
Assignee:
Eruji Chemical Co., Ltd.
International Classes:
C08F4/64; C08F4/642; C08F4/02; C08F10/00; C08F4/659; C08F4/6592; C08F110/02; C08F210/16; (IPC1-7): C08F4/642; C08F10/00
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)